October Challenge 2015
Count Subarrays, Who dares to be a millionaire, Time measure
January Long Challenge 2016
Chef and Time Machine, Devu and Perfume
February Challenge 2016
Rectangles of Love, Chef-Detective
March Challenge 2016
Palindromic substrings, maximize the sum, Chef And Special Dishes
April Challenge 2016
Chef And Coloring, Chef And Magical Path, Chef and Ballons, Help Watson Escape
March Cook-Off 2016
Digital clock, Alternating subarray prefix
July Cook-Off 2016
Chef and Proportion, Chef and Numbers
February Challenge 2017
Chef and Triangles, Chef and his Best Friend
May Challenge 2017
Chef and Subsequences, Median of adjacent maximum numbers, Blocked websites, Chef and his daily routine, Chef and Sub Array , Courses in an university
June Challenge 2017
Pairwise union of sets, Triplets, Xenny and Coin Rankings, Chef and the Feast, A Good Set, Chef and Prime Queries
July Challenge 2017
Chef and Sign Sequences, Pishty and tree, Whats in the Name, Calculator , IPC Trainers
August Long Challenge 2017
Chef And Fibonacci Array, Greedy Candidates, Palindromic Game, Chef and Mover, Chef and Rainbow Array
August Cook-Off 2017
Real obtuse, From heaven to earth
October Cook-Off 2017
Chef and Counting Test, Chef and Employment Test, Chef and Weird Queries
June Lunchtime 2017
Maximum Unique Segment, Two Numbers
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